Abstract: The present invention provides a thermofixable photosensitive recording material comprising a substrate and a recording layer formed thereon in which a pyrazolone derivative represented by the formula (1 ) shown in the specification and functions as a color former, and a hydroquinone derivative and an acidic substance which function as a color forming auxiliary agent or fixing auxiliary agent are dissolved mutually therein.Further, a binder can be added as required to the recording layer, thereby four components are dissolved mutually therein.

Abstract: A pressure sensitive recording material utilizing a color forming reaction between a colorless or light-colored basic dye and a color acceptor, and in which (1) a basic dye-containing layer and color acceptor-containing layer are formed on one surface of different substrates respectively, (2) a basic dye-containing layer and color acceptor-containing layer are formed on one surface and the other surface of a same substrate respectively, (3) a basic dye-containing layer and color acceptor-containing layer are superposed on one surface of a substrate or (4) a layer containing both basic dye and color acceptor is formed on one surface of a substrate, the pressure sensitive recording material being characterized in that the basic dye is at least one diarylmethane compound represented by the formula (1) given below, the basic dye being enclosed in synthetic high polymer microcapsules having a mean particle size of 3 to 15 .mu.m and an average film thickness of 0.1 to 0.7 .mu.